Alterego-X on 04 July 2009
Sony will be the first to release a new console, because there is simply nothing to do with the PS3. Its current popularity, (or the lack of it,) don't indicate a decent longevity, and nothing suggests a radical change in that. I would say late 2010, early 2011 for them.
Microsoft might keep the 360 around for a bit longer, based on its slightly better sales, and profitability. It might be sometimes in 2011.
The Wiis longevity is depending on the success of the M+
If it will be successful, and used properly, it will have the effect of a system relaunch, and lengthen its life expectancy with a few years, maybe even until 2012-13.
If not, it will have to be replaced around the same time as the other consoles.
